Sayyida Aisha (may Allah be pleased with her) says that the Messenger of Allah (peace and blessings be upon him) performed the Witr prayer in every part of the night, but his (peace and blessings be upon him) Witr would be completed by the time of Suhoor.
Hadith Referenceالفتح الربانی / أبواب صلاة الليل والوتر / 2189
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«أخرجه البخاري: 996، ومسلم: 745 ، (انظر مسند أحمد ترقيم الرسالة: 24188 ترقیم بيت الأفكار الدولية: 24692»